I have a 2.8 v6 with a leaking rear main. it has the 2 piece rear seal. ive read that this is a common problem with this engine. Is there a ';trick'; to keeping this from happening again, the seal has already been replaced once a few years ago.Gm 2.8 v6 rear main oil seal?
Make sure it is the rear main. 2.8's will also leak from the distributor o-ring and look like a rear main.Gm 2.8 v6 rear main oil seal?
The only ';trick'; is to make sure it is installed correctly in the first place...the seal needs to be lubricated well when it's pulled through, and surfaces need to be good and clean before pulling it through...any grit in there makes for a poor installation.
In addition to MICHAEL's note, another very common cause for failure is prolonged oil service. Change the oil religiously, and stay away from high-paraffin oils. If it has high mileage, avoid synthetic as well.
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